screws › setscrews
MS51021-11
Military Standard Setscrew
Description
Fastener Length: 1/4", Thread: 4-40, Head Width: 3/64", Thread Length: 1/4"
Specifications
| Fastener Length | 0.250 |
|---|---|
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Length | 1/4 |
| Material | CRES |
| Point Style | Cup |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.250 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
| Width Across Flats | 0.050 inches minimum and 0.051 inches maximum |
Cross-reference
Similar parts
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- AN565DC4H4 AN #4-40 · 1/4 in · Headless (setscrew) · CRES
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Catalog data updated 2026-07-05. Report a data error